The 885 is a general purpose gas filled triode or Thyratron and it has operating characteristics that match the 884. It differs in heater parameters and base.

The classic envelope is 38 mm in diameter and, excluding the UX5 base pins is 89 mm tall.

See also 884

 
Pin Connections

UX5	1	2	3	4	5
	h	a	g1	k	h

 
Absolute Maximum Operating Conditions

Thyratron	Vh	Ah	Va	mAa
	2.5	1.4	300	300

Thanks to Frank Philipse for supplying the above datasheet

This exhibit was last updated on 12 June 2007 {find valves by name}